Fabric winding apparatus



April 8, 1941. s. COHN ETAL 2,237,654

FABRIC WINDING APPARATUS Original Filed Feb. 24, 1938 2 Sheets-Sheet 1INVENTORS AZTTORNEYS A ril 8, 1941. s. COHN ETAL 2.237.654 I FABRICWINDING APPARATUS Original Filed Feb. 24, 1938 2 Sheets-Sheet 2 FICEFABRIC WINDING APPARATUS Samuel Cohn and Jules G. Walter, New York, N.Y., minors to Samcoe Holding Gorporati New York, N. Y., a corporation ofNew York Original application February 24, 1938. Serial No.

Divided and this application Decemher 2:, 1939, Serial No. notes 2Claims. (01. sis-cs This invention relates to apparatus for windingiabrlc supplied either in short or 7 continuous lengths.

An object of this invention is to provide means whereby fabric may bewound on a mandrel,

severed at selected points and winding begun on Fig. 2 is a sectionalview of a manually operated wind-up and arbor changing device;

Fig. 3 shows the apparatus of Fig. 2 immediateiv after the material hasbeen out;

Fig. 4 is a sectional view of an automatically operated wind-up andarbor changing device;

Fig. 5 shows the apparatus of Fig. 4 immediately after the material hasbeen cut; and

Fig. 6 is a plan view of the apparatus of Fig. 4.

The material to be wound passes partly around a driven roller 88 afterwhich it is wound on mandrel I18. The latter has pintles resting ininclined grooves 201 of an extension bracket "While the winding is inprogress the fabric on the mandrel bears against driven roller .86 whichserves to rotate the mandrel and overlying fabric. Asthe body of fabricincreases in size the plntles of the mandrel move along grooves ill andaway from roller 86 (Figs. 2 and 4) Recesses 209 in the top of bracket208 receive the pintles of an unfilled mandrel III which is held inreadiness to be placed in position to receive the fabric when mandrelI'll is removed (Fig. 2). There are downwardly extending grooves III inthe brackets 20! which at the bottom communicate with grooves 201.

When mandrel "8 has been filled it is moved along the brackets 208 toextensions I00 at the outer ends of grooves 201, thus taking roll 28 outof contact with driven roller 88 and away from the receiving position.The new mandrel Zlil is then lifted from the notches 209 and lnsertedinthe upper ends of grooves 2| l. Mandrel 2M thereupon slides down grooves2H and into engagement with roller 88. The material may now be severedby a cutter of the type shown in United States Letters Patent 1,746,476.In using a cutter of this sort fabric is permitted to accumulate betweenroll I! and roller 88 and to drop downward until it lies over cutter barII I. The operator then moves cutter Ilfl across the cutter bar severingthe material (Fig. 3) after which the end of the following strip ofmaterial is thrown over the new mandrel III which immediately begins towind the fabric being delivered by roll I6. The operator then removesroll 26 from the machine. I

A means may be provided for dropping the new mandrel 2Ill automaticallyinto operative position when the filled mandrel llt is removed. Asuitable construction lot this purpose is illustrated in Figs. 4 to 6,inclusive. In this embodiment when mandrel I'll is shifted outwardlyalone grooves 201 its plntles fall into sockets m on rocker arms 2pivoted at 403 to brackets 208. The weight of the mandrel depresses arms2 against tension springs tilt whichconnect extensions llli on armstilt. with brackets 208. Jihe engagement of stop lugs 406 with thebottoms of brackets 20! arrests the downward movement of sockets lllland holds the filled mandrel lll in a convenient position for removalfrom the machine. Latch rods llll extend from extensions 405 along'thebrackets 208 and pass through guides 408 on the ,inner parts of thebrackets into position across auxiliary grooves ill when arms 402 areheld in upward position by springs 404 as illustrated in Fig. l. I

While mandrel m is being filled replacement mandrel MI! is located ingrooves ill resting on the ends of latch rods 601 (Fig. 4) The shiftingof filled mandrel in into sockets till retracts latch rods m andautomatically drops the replacement mandrel Iil into operative position.Then the fabric bout, the replacement mandrel started and the filledmandrel removed from the machine. 3

Our invention may also be used advantageously with fabric made up of aseries of short lengths of fabric the ends of which have been fastenedtogether. In such cases the operator employs the cutter to sever thefabric lengths at the points where they have been fastened together.When short lengths of fabric are used the cutter may not be needed.

By use of applicants invention the operator may remove the filledmandrel, sever the fabric and start winding it on the replacement man-.drel without stopping the machine. Applicants Moreover, if a fabricsteaming or finishing machine must be stopped when the filled mandrel isremoved the portions of fabric in the finisher will be subjected to amore prolonged steaming and stretching than the fabric which has passedthrough the finisher on its way to the wind-up. This causes variationsin the width of the end portions of the fabric and frequently requirescutting off such end portions with resulting loss of fabric. Howeverbyuse of our wind-up ap- 1. In a fabric winding machine having a driveroller and a mandrel on which the fabric is wound, the improvementconsisting of inclined guideways for said mandrel leading away from saiddrive roller and holding the mandrel in operative position therewith 'ata given point as the mandrel becomes filled, and communicating guidewaysextending upwardly from their point of Junction with said guideways andpermitting a replacement mandrel to drop into operative position afterremoval of the filled mandrel.

2. A machine as set forth in claim 1 having latch means associated withthe communicating guideways retaining the replacement mandrel thereinand latch releasing means actuated by withdrawal of the mandrel fromoperative relationship to the drive roller.

SAMUEL COHN. JULES G. WALTER.

